Barge Rigs - Drilling Rigs for Sale - Oilfield Equipment - Offshore Rigs  and Vessels

A historic oil platform off Santa Barbara turns into a rusty ghost ship -  Los Angeles Times

Oil Rig Graveyard – Highland, Scotland - Atlas Obscura

The Buzz on Oilfield Drilling Equipment For Sale Rent & Auction - Tradequip

used as heave-motion compensators Rotaries were gimbaled to make up for roll and pitch The derrick was put at midship over a hole in the vessel called a"moonpool."Blowout preventers(BOPs)were operated on casing to the seafloor Re-entry into the well was through a funnel above a rotating head (riserless drilling is not new Mud pits were placed in the hull with mud pumps Living quarters were included It was an amazing and fantastic time, considering that everybody was starting with a blank sheet of paper. 4 reveals the Simple SM-1 drilling barge(204 34 13 feet)constructed and owned by Humble Oil and Refining Co.(now Exxon, Mobil) in 1957. Fig. 5 shows the subsea devices utilized to drill the wells. Keep in mind that it has no marine riser.  Source -1 drilled 65 wells for a total cost of $11. The unit averaged 8. 93 days per well and drilled approximately 324 ft/D. Sadly, the unit sank in a storm in 1961 while on loan to another operator. At the persistence of insurance coverage underwriters, the American Bureau of Shipping( ABS)wrote and implemented, in 1968, the first independent codes, guidelines, and regulations concerning the design, building and construction, and assessments of MODU hulls. Charlie (bottom established)and Western Explorer (floating )as the first Methods, another concept for a MODU appeared in the
kind of a"jackup ". This type of unit floated to area on a hull with multiple legs standing out under the hull. When on area, the legs were electrically or hydraulically jacked down to the ocean bottom, and then the hull was boosted out of the water.